Ferrero Rocher chocolates are manufactured in the shape of spherical balls, which are wrapped in foil. The Ferrero Rocher Company introduced the Ferrero collection, which
is a package of 15 chocolates, one layer deep in a 3 chocolate x 5 chocolate orientation, A single chocolate has a diameter of 3.2 cm.

a) Draw a sketch of the rectangular prism that would hold 15 chocolates, in a 3 x 5
orientation. Assume the chocolates are tightly packed and that they touch each other and all of the sides of the container, that the foil does not take up any space, and that there is no spare room. Label all dimensions of the prism, to the nearest tenth of a centimeter

b) Determine the volume of space inside the Ferrero Rocher container that the
chocolates do not fill. Round your answer to the nearest cubic centimeter.