What is the area in square feet of an ordinary piece of copier paper?

An ordinary piece of copier paper has a dimension of 8.5 inches by 11 inches. Converting inches to feet:

8.5 in * (1 ft / 12 in) = 0.708 ft

11 in * (1 ft / 12 in) = 0.917 ft

Therefore the area is simply:

Area = 0.708 ft * 0.917 ft

Area = 0.65 ft^2