You said you have federated one more server into the cell ?
Normally you federate a node to the cell.
Do you mean that you have created another server on a new node(added to the cell) which is part of your existing cluster ?
If you have added a new server to the existing cluster just do node sync from the Admin console and your application get pushed to the new server.
Also if you are trying to do map module to servers you will select the cluster name not the appserver name from the drop down list so that your code is deployed on the cluster.When code is deployed on cluster ear gets deployed on all the cluster members.