Calculate the number of atoms in a 3.0 cm × 4.0 cm × 5.0 cm right rectangular prism of copper.

• A. 5.9 × 10²⁴ atoms
• B. 5.1 × 10²⁴ atoms
• C. 6.2 × 10²² atoms
• D. 6.7 × 10²² atoms

Answer: (B)