Table schema:
CREATE TABLE table_11614581_3 (area VARCHAR, _in_thousands_of_km_2 VARCHAR, name_in_russian VARCHAR)

Question: плоцкая губерния governs an area with what area (in thousand km 2)?
SQL: SELECT area, _in_thousands_of_km_2 FROM table_11614581_3 WHERE name_in_russian = "Плоцкая губерния"