Is palladium plating done before rhodium plating? What is the default thickness of palladium plating

Rhodium plating: Bottom layer electroplated silver (approximately 0.6 micrometers, unlimited thickness <copper models can be electroplated to 10-20 micrometers for 925 silver purity>), middle layer palladium plating (approximately 0.015 micrometers, maximum thickness 0.05 micrometers), outer layer rhodium plating (0.015-0.02 micrometers, maximum thickness 0.1 micrometers). Rose gold/gold plating: Copper models electroplated copper base, silver models electroplated silver base.