A wire that is 16 centimeters long is shown below. The wire is cut into two pieces, and each piece is bent and formed into the shape of a square.

Suppose that the side length (in centimeters) of one square is x. (a) Find a function that gives the total area A(x) enclosed by the two squares (in square centimeters) in terms of x. (b) Find the side length x that minimizes the total area of the two squares. (c) What is the minimum area enclosed by the two squares?