Solve the Problem $x$ $\mathrm { cm }$ , and It Has a Height Of

Solve the problem.
-An open-top rectangular box has a square base and it will hold 105 cubic centimeters (cc) . Each side has length $x$ $\mathrm { cm }$ , and it has a height of $\mathrm { y } \mathrm { cm }$ .
Express the surface area as a function of the length $x$ of a side of the base.

A) $\frac { 105 } { x } + x ^ { 2 }$
B) $\frac { 210 } { x } + x ^ { 2 }$
C) $\frac { 420 } { x } + x ^ { 2 }$
D) $420 + x ^ { 2 }$