Disk space questions (especially r.e. Plesk logs)

[codecreature]

Sorry if these are obvious questions, I've been trying to figure this out myself but I don't know much about web hosting or Plesk.

Is there a way to directly limit the total amount of disk space Plesk's Apache SSL/TLS access logs are permitted to use before they start clearing themselves? I'm working on cutting down the number of requests I'm currently sending via PHP because I did some things unwisely, but I'd also like users to be theoretically able to send a good number of requests without me ever having to manually clear the logs to avoid going over my storage limit.

Also, the Plesk disk space usage statistics for my site is listing 286 MB for Web (as opposed to logs/databases/mail/backups/config) but the repository I pull from only contains 94 MB of files. I'm currently trying to figure out where the remaining file size comes from. If anyone has suggestions on what sorts of things I might be able to look for or where, I'd appreciate it. I haven't had any luck digging through my folders so far.