Step 1: Use the area formula for a rectangle
The area of a rectangle is given by:
\[
\text{Area} = \text{Length} \times \text{Width}
\]
Step 2: Identify length and width
From given points:
- \( P(0,0) \) to \( Q(6,0) \) gives length = \( 6 \).
- \( Q(6,0) \) to \( R(6,2) \) gives width = \( 2 \).
Step 3: Compute the area
\[
\text{Area} = 6 \times 2 = 12
\]
Thus, the correct answer is \( 12 \).