Welcome to the JavaRanch, Deparis!
Are you sharing this copy of
Tomcat with other users/domains?
Unless you are running multiple virtual hosts with Tomcat, you don't set up a specific domain in server.xml. You use the localhost domain and the webapps directory would be simply TOMCAT_HOME/webapps.
For a virtual host, the path would usually be configured to be something like SOME_DIRECTORY/domainame.com/webapps. Where SOME_DIRECTORY
could be your TOMCAT home directory, but doesn't have to be. Actually, the webapp directory path could be any directory that Tomcat can access, as long as no other virtualhost is set up to use it as well.