Final answer:
The amount of depreciation for the second full year, during which the machine was used 3,119 hours, is $12,562.38.
Step-by-step explanation:
To calculate the depreciation using the units-of-activity method, we need to determine the depreciation per unit. This can be calculated by subtracting the estimated residual value from the cost of the machine and then dividing it by the estimated life in units of activity.
Depreciation per unit = (Cost - Residual Value) / Estimated life in units of activity
In this case, the depreciation per unit would be:
Depreciation per unit = ($65,233 - $5,023) / 14,713 hours = $4.02 per hour
Now we can calculate the depreciation for the second full year, during which the machine was used 3,119 hours:
Depreciation for the second full year = Depreciation per unit * Number of hours used
Depreciation for the second full year = $4.02 per hour * 3,119 hours = $12,562.38