Both of the countries share a similar heritage. But america seems to be taken to the Coffee drinking while England tea seems to be dominant brew.
This is partially down to the trade of the British Empire in the 18/19th Centuries. It as actually more profitable for producers, and the infamous East India Trading company to import and produce tea than coffee. It was also down to the issue of sugar production. This was the time when Euro economies were starting to worry about their balance of trade, as society's marginal propensity to import (things) increased as britian became wealthier, and the powers that were decided that the growing of sugar beat would negate the problems of importing expensive sugar cane from warmer climates. Also, crucially, Britian pretty much had an international monopoly on Tea (with EITC in India and the opium trade in China), so this gave them a massive competitive advantage over the dutch. Hence, tea was economically encouraged.
Even though Britain is now stereotyped (and is) a tea drinking nation, it actually was coffee which was the favorite drink and spawned many London Coffe Houses in the 1600s - British aristocracy liked this foreign taste, even more so given coffee drinking connoted European wealth and sophistication. As the French and Dutch courts started drinking more Tea, in the 18/9th centuries As an imported luxury, only the wealthy could afford to drink tea. The least expensive pound of tea available cost the average laborer about a month's worth of wages. The lofty tea prices made tea highly fashionable and elitist. The ability to serve and drink tea with elegance and skill marked social status and indicated good breeding and intellect. To that end, many wealthy 18th century English and Dutch families had paintings made of the family having tea. Thus, with court rivalry manifesting itself in ostentation, many rich families, conspicuous consumers and social climbers wanted to drink tea - the perceived drink of the wealthy and well-connected.
In short, a number of social and economic factors contributed to the change, I would suggest you look at the links provided by the Moderator if you want a deeper answer
hi! there's lots of room for more information on this one, but fyi, you may find these previous posts of interest
Follow up question: is there any example of a major war in which a predominantly coffee-drinking nation has beaten a predominantly tea-drinking nation?