When I'm using server-status to view the number of workers the server can use, its 50 total. What file do I edit to change the maximum number of workers?
You edit the Apache configuration file - where that is depends on where and how Apache was installed. What OS are you on, and how did you install Apache?
To adjust the max worker count, the settings that matter depend on which MPM you're using. Most likely, you'll need to adjust
Can you clarify what problem you're looking to solve by changing the maximum worker count?