What is a box that has dimensions of 2 in by 3 in by 4 in has a total surface area of what?

Assuming that the box is a rectangular parallelepiped, it has two sides each with dimensions 2*3, 2*4, and 3*4, with areas of 6, 8, and 12 square inches respectively. The total surface area therefore is 2(6 + 8 + 12) = 52 square inches.