If a cubical block contains 21,952 cubic inches, how many square feet of paper will be required to cover the entire surface?

Cubical block:
Volume: V=21,952 cubic inches
V=a^3
Edge: a
a^3=21,952 cubic inches
Solving for a:
cubic root (a^3)=cubic root(21,952 cubic inches)
a=28 inches

Surface Area: S=?
S=6a^2
S=6(28 inches)^2
S=6(784 inches^2)
S=4,704 inches^2
S=4,704 inches^2 (1 foot)^2 / (12 inches)^2
S=4,704 inches^2 (1 foot^2)/(144 inches^2)
S=32.66666666 feet^2
S=32.67 feet^2

32.67 square feet of paper will be required to cover the entire surface.

The answer maybbe c