Is there a particular requirement to know which jobs were copied by a particular AuxCopy operation?
You can see which jobs are waiting to be copied by right-clicking on the secondary copy under the Storage Policy and viewing jobs.
Jobs waiting to be copied will have the "To Be Copied" status. Jobs that have been copied will show "Available" status.
Also the jobs in this view will have a Copied Time column so you will be able to see when the job was copied. If you need to know specifically which jobs were copied by an AuxCopy operation, then you could correlate the copied time to a copy job.