Final answer:
The Copper Corporation's cash collections for September amount to $199,000, calculated based on the percent of collections from sales of that month, the previous month, and the month before that.
Step-by-step explanation:
To calculate the cash collections for September for Copper Corporation, we would have to consider the sales made in July, August, and September, as some of the sales from these months would be collected in September according to the historical cash collection data. Here's the breakdown: 65% of September sales are collected in September: 0.65 × $220,000 = $143,000, 25% of August sales are collected in September: 0.25 × $160,000 = $40,000, 8% of July sales are collected in September: 0.08 × $200,000 = $16,000. Adding these amounts together gives us the total cash collections for Copper Corporation in September: $143,000 + $40,000 + $16,000 = $199,000.