Copy and paste operations between the guest operating system and remote console are deactivated by default. 

To enable it:

• Browse to the virtual machine in the vSphere Client inventory
• Right-click the virtual machine and click Edit Settings.
• Select Advanced Parameters.
• Add or edit the following parameters.
  
  isolation.tools.copy.disable False
  isolation.tools.paste.disable False
  isolation.tools.setGUIOptions.enable True
  These options override any settings made in the guest operating system’s VMware Tools control panel.
• Click OK.
• (Optional) If you made changes to the configuration parameters, restart the virtual machine.