The volume of a sphere can be calculated using the formula V = (4/3) * π * r^3, where V is the volume and r is the radius.
Plugging in the given radius of 12 mm, we get:
V = (4/3) * 3.14 * (12^3)
V ≈ (4/3) * 3.14 * 1728
V ≈ 7238.08 mm^3
Therefore, there is approximately 7238.08 mm^3 of chocolate in a spherical chocolate truffle with a radius of 12 mm.