Cubes on a Cube

Weekly Problem 26 - 2016
A cube has each of its faces covered by one face of an identical cube, making a solid as shown. What is the surface area of the solid?
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Problem



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Cubes on a Cube
A cube has each of its faces covered by one face of an identical cube, making a solid as shown. The volume of the solid is $875\text{cm}^3$.

What, in $\text{cm}^2$, is the surface area of the solid?

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.