The application data of a database instance are all the rows of all base tables and all the index entries created for the base tables.
As a minimum, the application data of a table or index can use just one data page . As a maximum, a table can extend across all data volumes of the database instance. A table increases or decreases in size automatically without administrative intervention. As a rule, a database-internal striping algorithm distributes the data belonging to a table evenly across all the data volumes. It is therefore not possible or necessary to assign tables to the individual data volumes.
See also Data Management Using B* Trees in the documentation Background Knowledge.