1. Atomic Mass:

* The atomic mass of copper (Cu) is approximately 63.55 atomic mass units (amu).

2. Conversion to Grams:

* 1 amu = 1.66054 × 10⁻²⁴ grams

3. Calculation:

* Mass of one copper atom = (63.55 amu) × (1.66054 × 10⁻²⁴ g/amu)

* Mass of one copper atom ≈ 1.055 × 10⁻²² grams