To find the total weight of the 8 plastic discs, you can multiply the weight of each disc by the number of discs.
Given that each disc weighs 0.6 ounces and there are 8 discs, the calculation is:
\[ \text{Total weight} = \text{Weight of one disc} \times \text{Number of discs} \]
\[ \text{Total weight} = 0.6 \text{ ounces/disc} \times 8 \text{ discs} \]
\[ \text{Total weight} = 4.8 \text{ ounces} \]
Therefore, the total weight of the 8 plastic discs is 4.8 ounces.