Answer: 
Step-by-step explanation:
Given
There is
of ham available which costs
cost
i.e.

and we know

So, 
thus 
If you notice, the container is really just two circles, with a diameter of 4 each, and a square with sides of 10.5.
now, if we just get the area of each circle, keeping in mind their radius is half of the diameter, namely r = 2, and get the area of the 10.5x10.5 square, sum them up, that'd be the surface area of the container.