Present a mathematical solution to the problem found below. Furthermore, discuss whether or not the solution is feasible and the most logical way to pursue.

Question

We want to construct a cylindrical can whose volume is 105 mm3. The material for the wall of the can costs $3/mm2, the material for the bottom of the can costs $7/mm2 and the material for the top of the can costs $2/mm2. Determine the dimensions of the can that will minimize the cost of the materials needed to construct the can.